﻿#region License
// Copyright (c) 2009 Shengmin Zhang
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Specialized;
using System.Reflection;
using System.Collections.Generic;

using Apprender.Extensions.Methods;
using Apprender.Serialization.Json;
//using Apprender.Utilities;

namespace Apprender.Serialization
{
    public class ParameterMappingResolver : IParameterMappingResolver,IJsonParameterMappingResolver
    {
        #region IParameterMappingResolver Members

        public object[] Map(Dictionary<string, string> paramList, ParameterInfo[] paramInfo, IJsonSerializer serializer)
        {
            var length = paramInfo.Length;
            var values = new object[length];            

            for (int i = 0; i < length; i++)
            {
                var p = paramInfo[i];
                var name = p.Name;
                var type = p.ParameterType;
                var typeCode = Type.GetTypeCode(type);
                object value = null;

                switch (typeCode)
                {
                    case TypeCode.Object:
                        value = serializer.Deserialize(paramList[name], type);
                        break;
                    default:
                        value = paramList[name].ConvertTo(typeCode);
                        break;
                }
                values[i] = value;
            }

            return values;
        }

        public object[] Map(NameValueCollection paramList, ParameterInfo[] paramInfo)
        {
            var length = paramInfo.Length;
            var values = new object[length];
            for (int i = 0; i < length; i++)
            {
                var p = paramInfo[i];
                var type = p.ParameterType;
                var name = p.Name;

                var value = paramList[name].ConvertTo(type);

                values[i] = value;
            }

            return values;
        }

        #endregion
    }
}
